String Seminar

Topological Symmetric Orbifolds and String Theories

by Prof. Jan Troost (LPENS)

Europe/Berlin
Description

We compute correlators in topological symmetric orbifold theories with gauge group S_N, exactly as well as in a large N expansion. These results prove and refine conjectures about extremal correlators and add infinite new sets of explicit expressions for correlation functions. We argue that their string theoretic interpretation requires a grand canonical perspective which in turn clarifies the identification of string vertex operators in the gauge theory.